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Epitranscriptomics & Cancer Adaptation : A.David

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Our research work focuses on the contribution of post-transcriptional mechanisms on cancer cell adaptation, in particular RNA epigenetic & translational control.

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Group name EquipeCTCS
Item Type Journal Article
Title ERR? promotes breast cancer cell dissemination to bone by increasing RANK expression in primary breast tumors
Creator Vargas et al.
Author G. Vargas
Author M. Bouchet
Author L. Bouazza
Author P. Reboul
Author C. Boyault
Author M. Gervais
Author C. Kan
Author C. Benetollo
Author M. Brevet
Author M. Croset
Author M. Mazel
Author L. Cayrefourcq
Author S. Geraci
Author S. Vacher
Author F. Pantano
Author M. Filipits
Author K. Driouch
Author I. Bieche
Author M. Gnant
Author W. Jacot
Author J. E. Aubin
Author M. Duterque-Coquillaud
Author C. Alix-Panabières
Author P. Clézardin
Author E. Bonnelye
Abstract Bone is the most common metastatic site for breast cancer. Estrogen-related-receptor alpha (ERR?) has been implicated in cancer cell invasiveness. Here, we established that ERR? promotes spontaneous metastatic dissemination of breast cancer cells from primary mammary tumors to the skeleton. We carried out cohort studies, pharmacological inhibition, gain-of-function analyses in vivo and cellular and molecular studies in vitro to identify new biomarkers in breast cancer metastases. Meta-analysis of human primary breast tumors revealed that high ERR? expression levels were associated with bone but not lung metastases. ERR? expression was also detected in circulating tumor cells from metastatic breast cancer patients. ERR? overexpression in murine 4T1 breast cancer cells promoted spontaneous bone micro-metastases formation when tumor cells were inoculated orthotopically, whereas lung metastases occurred irrespective of ERR? expression level. In vivo, Rank was identified as a target for ERR?. That was confirmed in vitro in Rankl stimulated tumor cell invasion, in mTOR/pS6K phosphorylation, by transactivation assay, ChIP and bioinformatics analyses. Moreover, pharmacological inhibition of ERR? reduced primary tumor growth, bone micro-metastases formation and Rank expression in vitro and in vivo. Transcriptomic studies and meta-analysis confirmed a positive association between metastases and ERR?/RANK in breast cancer patients and also revealed a positive correlation between ERR? and BRCA1mut carriers. Taken together, our results reveal a novel ERR?/RANK axis by which ERR? in primary breast cancer promotes early dissemination of cancer cells to bone. These findings suggest that ERR? may be a useful therapeutic target to prevent bone metastases.
Publication Oncogene
Volume 38
Issue 7
Pages 950-964
Date 02 2019
Journal Abbr Oncogene
Language eng
DOI 10.1038/s41388-018-0579-3
ISSN 1476-5594
Library Catalog PubMed
Extra PMID: 30478447
Tags Animals, Bone Neoplasms, Breast Neoplasms, Female, Gene Expression Regulation, Neoplastic, Humans, Mammary Neoplasms, Animal, Mice, Mice, Inbred BALB C, Neoplasm Proteins, original, Receptor Activator of Nuclear Factor-kappa B, Receptors, Estrogen
Date Added 2019/05/14 - 17:46:09
Date Modified 2022/08/01 - 16:02:40
Notes and Attachments PubMed entry (Attachment)


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